Where does “käskysarja” come from?

käskysarja (Finnish) comes from Finnish käsky, from Finnish käskeä, from Proto-Finnic käskedäk, from Proto-Uralic käske-.

Ancestry of “käskysarja”, step by step

käskysarja traces back through two separate lines of ancestry.

via Finnish käsky

StepLanguageWordMeaning
1FinnishkäskyAn order, command, commandment, dictation,...
2Finnishkäskeäto order, tell; to command; to request, ask for,...
3Proto-Finnickäskedäkto tell, to command
4Proto-Uralickäske-

via Finnish sarja

StepLanguageWordMeaning
1Finnishsarjaseries; chain, sequence, succession, train; set
2Proto-Finnicsarjarow of laths or battens; a board made of laths
3Proto-Finno-Permicśarjalath, batten, bar
Every word from Proto-Uralic käske-Every word from Proto-Finnic käskedäkEvery word from Finnish käskeä